cb6c3d45f9
In order to avoid keeping a reference on the i915_vma (which is long overdue!) we have to coordinate all the possible lifetimes and only use the vma while we know it is alive. In this episode, we are reminded that while idle, the closed vma are destroyed. So if the GT idles while we are working with the vma, the vma itself becomes invalid. First class i915_vma here we come, but in the meantime keep piling on the straw. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191203155032.3137263-1-chris@chris-wilson.co.uk
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.